42 citations · 145 across the 8 of their papers we have counts for
8 papers
Galaxy Power Spectrum in General Relativity
Nastassia Grimm, Fulvio Scaccabarozzi, Jaiyul Yoo +2
We present the galaxy power spectrum in general relativity. Using a novel approach, we derive the galaxy power spectrum taking into account all the relativistic effects in observat…
Non-linear general relativistic effects in the observed redshift
Giuseppe Fanizza, Jaiyul Yoo, Sang Gyu Biern
We present the second-order expression for the observed redshift, accounting for all the relativistic effects from the light propagation and from the frame change at the observer a…
Correlation function of the luminosity distances
Sang Gyu Biern, Jaiyul Yoo
We present the correlation function of the luminosity distances in a flat CDM universe. Decomposing the luminosity distance fluctuation into the velocity, the gravitational pote…
Gauge-Invariance and Infrared Divergences in the Luminosity Distance
Sang Gyu Biern, Jaiyul Yoo
Measurements of the luminosity distance have played a key role in discovering the late-time cosmic acceleration. However, when accounting for inhomogeneities in the Universe, its i…
Dark energy and non-linear power spectrum
Sang Gyu Biern, Jinn-Ouk Gong
We investigate the effects of homogeneous general dark energy on the non-linear matter perturbation in fully general relativistic context. The equation for the density contrast con…
Non-linear power spectra in the synchronous gauge
Jai-chan Hwang, Hyerim Noh, Donghui Jeong +2
We study the non-linear corrections to the matter and velocity power spectra in the synchronous gauge (SG). We consider the perturbations up to third order in a zero-pressure fluid…
Exact Third-Order Density Perturbation and One-Loop Power Spectrum in General Dark Energy Models
Seokcheon Lee, Changbom Park, Sang Gyu Biern
Under the standard perturbation theory (SPT), we obtain the fully consistent third-order density fluctuation and kernels for the general dark energy models without using the Einste…
Non-linear matter bispectrum in general relativity
Sang Gyu Biern, Jinn-Ouk Gong, Donghui Jeong
We show that the relativistic effects are negligibly small in the non-linear density and velocity bispectra. Although the non-linearities of Einstein equation introduce additional…